<template>
  <div>
    <h3>用户列表组件</h3>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addUserVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表(表格)区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <!-- 作用域插槽 -->
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="changeUserState(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <!-- 作用域插槽 -->
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditUser(scope.row.id)"
            ></el-button>
            <!-- 删除 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="toDeleteUser(scope.row.id)"
            ></el-button>
            <!-- 分配角色 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页显示区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 弹出页面：新增 -->
    <el-dialog
      title="添加用户"
      width="30%"
      :visible.sync="addUserVisible"
      :before-close="handleClose"
      @close="closeAddUser"
    >
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 弹出页面：修改 -->
    <el-dialog title='修改用户信息' :visible.sync="eidtUserVisible" width="30%" @close="closeEditUser">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" :disabled="true"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--  -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="eidtUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取查询用户信息的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      // 保存请求回来的用户列表数据
      userList: [],
      total: 0,
      addUserVisible: false,
      eidtUserVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {},
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      },
      // 添加表单的验证规则对象
      editFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      // 发送请求获取用户列表数据
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      // 如果返回状态为异常状态则报错并返回
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      // 如果返回状态正常，将请求的数据保存在data中
      this.userList = res.data.users
      this.total = res.data.total
    },
    handleSizeChange(newsize) {
      this.queryInfo.pagesize = newsize
      this.getUserList()
    },
    handleCurrentChange(newnum) {
      this.queryInfo.pagenum = newnum
      this.getUserList()
    },
    async changeUserState(row) {
      const { data: res } = await this.$http.put(
        `users/${row.id}/state/${row.mg_state}`
      )
      if (res.meta.status !== 200) {
        row.mg_state = !this.mg_state
        return this.$msg.error('状态修改失败')
      }
      this.$msg.success('状态更新成功！')
    },
    closeAddUser() {
      this.$refs.addFormRef.resetFields()
    },
    closeEditUser() {
      this.$refs.editFormRef.resetFields()
    },
    handleClose() {
      this.$refs.addFormRef.resetFields()
    },
    addUser() {
      // 点击确定按钮，添加新用户
      // 调用validate进行表单验证
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$msg.error('请填写完整用户信息')
        // 发送请求完成添加用户的操作
        const { data: res } = await this.$http.post('users', this.addForm)
        // 判断如果添加失败，就做提示
        if (res.meta.status !== 201) return this.$msg.error('添加用户失败')
        // 添加成功的提示
        this.$msg.success('添加用户成功')
        // 关闭对话框
        this.addUserVisible = false
        // 重新请求最新的数据
        this.getUserList()
      })
    },
    async editUser() {
      this.$refs.editFormRef.validate(valide => {
        if (!valide) return this.$msg.error('请填写完整用户信息')
      })
      const { data: res } = await this.$http.put(
        'users/' + this.editForm.id,
        { email: this.editForm.email },
        { mobile: this.editForm.mobile }
      )

      if (res.meta.status !== 200) {
        return this.$msg.error('网络异常，请稍后重试')
      }

      this.getUserList()
      this.eidtUserVisible = false
      this.$msg.success('操作成功')
    },
    async showEditUser(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$msg.error('服务器异常，请稍后重试')
      }
      this.editForm = res.data
      this.eidtUserVisible = true
    },
    async toDeleteUser(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)

      if (confirmResult !== 'confirm') {
        return this.$msg.error('删除已取消')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$msg.error('服务器异常，请稍后重试')
      }
      this.$msg.success('删除成功')
      this.getUserList()
    }
  }
}
</script>
<style lang="less" scoped>
</style>
